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Electric dust collector

A vacuum cleaner and electric technology, applied in the direction of vacuum cleaners, electric components, electromechanical devices, etc., can solve the problems of power increase and other problems, achieve the effects of shortening length, high air supply efficiency, and improving suction power

Inactive Publication Date: 2003-01-08
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase fan output, power consumption, motor efficiency, and blower efficiency can be increased separately, but for power consumption, 1000W class has become the mainstream. When considering the trend of energy saving, as a household device, the power cannot be increased to more than 1000W

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Figure 10 A perspective view showing the appearance of the electric vacuum cleaner related to Embodiment 1 of the present invention. exist Figure 10 Among them, 1001 is the main body of the vacuum cleaner with a built-in control circuit and electric blower, 1002 is a hose connected to the suction port of the main body 1001 of the vacuum cleaner, and 1003 is a hose handle connected to the hose 1002 at one end and held by the user at the same time. , 1004 is the extension tube connected to the other end of the hose handle 1003, 1005 is the suction port connected to the extension tube 1004, 1006 is the switch operation part set on the hose handle 1003, 1007 is set on the hose handle 1008 is the second infrared luminescent part arranged on the hose handle part 1003, 1009 is the infrared photosensitive part arranged on the vacuum cleaner main body 501, and 1010 represents the indoor ceiling.

[0050] Figure 11 It shows a longitudinal sectional view of the electric vacu...

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Abstract

The present invention discloses an electric dust collector with a wind volume more than 1.0 m<3> / min. The rotating number of an electric blower is set between 40000-50000rpm. A ratio between the area of a virtual annulus ring to interconnect the front ends on the central side of the blades of a centrifugal impeller and the inlet area of the centrifugal impeller is set to a range of 1.0-1.4. A ratio between the width size at the outer circumferential outlet of the blade and the outer diameter size is set to more than 0.07. A ratio between the flow path section area of the inner circumferential side of the blade and the flow path section area of the outer circumferential side is set to below 0.74. A ratio between the inlet width size of the blade and the outlet width size is below 2.0, and a ratio between the curvature radius of the round corner and the inlet width size of the blade is set to a range of 0.6-0.9.

Description

[0001] This application is a divisional application of the parent application whose invention name is "electric vacuum cleaner", the application date is June 26, 1996, and the application number is 96106924.4. technical field [0002] The present invention relates to electric vacuum cleaners, and particularly relates to reduction in size and weight and high output of an electric blower as a driving source of suction force thereof. Background technique [0003] Today's electric vacuum cleaners for general households are required to have a stronger suction force in order to meet market requirements such as carpet waste that is difficult to absorb. Suction power is used as the unit of suction force. In recent years, with this improvement in suction power, electric vacuum cleaners with motors of the 1000W class have been released. [0004] In electric vacuum cleaners, commutator-type motors are mainly used, and their aerodynamic characteristics are as follows: figure 2 shown. ...

Claims

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Application Information

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IPC IPC(8): A47L5/12A47L5/22F04D29/30
CPCA47L9/0081A47L9/22H02K7/14Y10S416/00
Inventor 丰岛久则星忠行中居贵弘常乐文夫宫下邦夫小松茂三郎田原和雄安部岳志田岛泰治岩濑幸司佐藤繁则篠崎利也
Owner HITACHI LTD
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